package homework.day319.demo2;

public class Main {
    public static void main(String[] args) {
        System.out.println(Compute.add(10,20));
        System.out.println(Compute.sub(30,5));
        System.out.println(Compute.mul(3,5));
        System.out.println(Compute.div(25,5));
    }

}
